Amazon recently did this to me with The Grinch 3D. I'd pre-ordered back in December, and somehow that order got left behind when they created a new page for the title and abandoned my pre-order page. I had to go through chat to get them to honor the pre-order price via a cancellation and re-order process (which they did just fine, without question). But it was an inconvenience. I doubt I'll pre-order again that far in advance. One would hope that perhaps James Cameron has the power to compel a 3D blu-ray release. But then again, he apparently couldn't swing a domestic 3D blu release of T2.